Fan filter



FIG. 1 is a perspective view of a fan filter shown in use.

FIG. 2 is a front view.

FIG. 3 is a top view.

FIG. 4 is a left side view.

FIG. 5 is a right side view.

FIG. 6 is a rear view.

FIG. 7 is a bottom view; and,

FIG. 8 is a view of the filter opened.

The broken line showing of environmental structure in FIG. 1 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a fan filter, as shown and described. 